On bigger controllers these as being the Morningstar TriStar, separate load control switches and relays could also be employed for load control of DC hundreds around 45 or 60 Amps. Along with a charge controller, a relay driver is also frequently utilized to swap relays on and off for load management. The relay driver incorporates four individual channels to prioritize more important hundreds to stay on for a longer period than a lot less critical hundreds. It’s also useful for automated generator start out handle and alarm notifications.
Extra sophisticated solar demand controllers may keep track of temperature and change battery charging to enhance the charging appropriately. This really is known as temperature payment, which prices into a better voltage in chilly temperatures plus a lower voltage when it truly is warm.
A lot of photo voltaic demand controllers consist of on-site and distant facts checking. Morningstar features serial communications options so the controllers can be monitored domestically or remotely with appropriate communications devices. In addition, Ethernet communication functionality is usually readily available for monitoring domestically on a LAN or remotely on the internet.
For these and also other causes, the solar controller can be thought of because the system’s coronary heart and brains. It makes certain long-term battery health and fitness less than a variety of functioning circumstances too as offers significant load manage and program checking features.